Increase files checked by ESLint (#9705)

.eslintignore

@@ -1,30 +1,13 @@
-# See https://help.github.com/articles/ignoring-files for more about ignoring files.
-#
-# If you find yourself ignoring temporary files generated by your text editor
-# or operating system, you probably want to add a global ignore instead:
-#   git config --global core.excludesfile '~/.gitignore_global'
-
-# Ignore bundler config.
-/.bundle
-
-# Ignore the default SQLite database.
-/db/*.sqlite3
-/db/*.sqlite3-journal
-
-# Ignore all logfiles and tempfiles.
-/log/*
-!/log/.keep
-/tmp
-coverage
-public/system
-public/assets
-.env
-.env.production
-node_modules/
-neo4j/
-
-# Ignore Vagrant files
-.vagrant/
-
-# Ignore Capistrano customizations
-config/deploy/*
+/build/**
+/coverage/**
+/db/**
+/lib/**
+/log/**
+/node_modules/**
+/nonobox/**
+/public/**
+!/public/embed.js
+/spec/**
+/tmp/**
+/vendor/**
+!.eslintrc.js